Good luck with your dinner. I'll be thinking of you as I sit through an awkward lunch tomorrow myself, trying to pass myself off as a normal duck, and then feeling kind of fake for it.

Just don't feel like you owe anyone an apology for what you want out of life. You're perfectly acceptable as a loner, an odd duck, or a picky person when it comes to friends. That's just who you are, and there's nothing wrong with it.